5-12 888-2629-200 10/6/10
WARNING: Disconnect primary power prior to servicing.
Section 5 Maintenance and Alignments
Maxiva ULX COFDM Series
STEP 7 De-solder two jumpers and the blue & gray DC supply wires.
STEP 8 Remove board and cleanup heat transfer compound.
NOTE:
Removal of the pallet may be difficult due to the presence of the heat transfer
compound under the board. To remove the board first remove the cover supports
either side of the board. Removal of the supports allows room to insert a flat
blade screwdriver beneath the edge of the board. Use the screwdriver to gently
pry upward without placing stress on adjacent boards. Repeat this process along
the edges of the board in several places until it loosens up.
STEP 9 Reapply heat transfer compound. Use a small roller or brush to apply
even, thin coat.
STEP 10 Install pallet and all hold down screws.
STEP 11 Torque four (4) allen screws to 30 in lbs.
STEP 12 Solder two jumpers and the blue & gray DC supply wires. Material
to replace the jumpers is included in the pallet replacement kit. Cut the
replacement jumpers to match those removed.
STEP 13 Replace PA module cover.
STEP 14 Replace PA module in rack. Tighten module hold down screws.
STEP 15 Turn on PA module breaker. Press the transmitter ON button to
reactivate all modules that are OFF.
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